Pump for driven wells



UNITED STATES PATENT OFFICE.

DAVID A. SCHOMP, OF MOUNT VERNON, OHIO.

PUMP FOR DRIVEN WELLS.

SPECIFICATION forming part of Letters Patent No. 263,815, datedSeptember 5, 1882.

l Application iiled February 13, i882. (No model.)

To allwhom it may concern:

Beit known that I, DAVID A. SCHOMP, a citizen ot' the United States,residing at Mount Vernon, in the county of Knox and State of Ohio, haveinvented certain new and useful Improvements in the Valve of aDriven-VVell Pump, of which thefollowing is a specification, referencebeinghad to the accompanying drawings, which forni a part hereof.

Figure l represents the old valve. Fig. 2- represents the old valve withthe improvement attached. f i

In the drawings,A represents the valve,co1n prising a cage and ball, asshown,and B the short section of tubing into which the valve screws. Thejoint between these two parts is provided with a rubber ring, R, whichas now constructed is caught and pressed up by the Hat edge of the shortsection B, and the result is the ring is soon destroyed by its reducingthe i'rictional action of this section. This difficulty I avoid byintroducing the Washer W between the upper edge of the section B and therubber ring to catch the thrust of the section B and the frictionalwear. It is evident, however, to all familiar wit-h the construction ofdrive-wells thata washer of ordinary construction will drop off when thevalve is disconnected from and wear from the edge of the section B, asit is located between the rubber ring and the section. After the washerWpasses the screwthreads on the short section B it falls into theconcave portion of the valve A, and thus serves to hold the rubber ringR in position when the valve becomes detached from any cause from theshort section B. It is thus apparent that the ring R cannot by accidentbe dropped oit 4 5 the valve A, nor can it be pulled od in raising thevalve from the pump-tube, within which the rubber 4ring It lits snugly,for the purpose of forming a water-tight joint between the valve and thewalls of the tube. Iain also enabled to tillthe space between the rubberring R and washer with white lead or any other material for thepreservation and pro-V DAVID A. SOHOMP.

Witnesses:

WILLIAM A. SILCo'rT, CHARLES E. ORITCHEIELD.

perfectly water-tight

